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Subtract 3/42 from 10/8

1st number: 1 2/8, 2nd number: 3/42

10/8 - 3/42 is 33/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    10/8 = 10 × 21/8 × 21 = 210/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    3/42 = 3 × 4/42 × 4 = 12/168
  4. Subtract the two fractions:
    210/168 - 12/168 = 210 - 12/168 = 198/168
  5. After reducing the fraction, the answer is 33/28
  6. In mixed form: 15/28

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